Wash tank



Dec. 23, 1941.

R. J. ANSCHICKS WASH TANK l Filed Dec. 7; 195s Patented Dec. 23, 1941Unirse srarfes i,

ari-,snr offer-ics ".VJASH TANK Rudolph J. 'Anschicks, Chicago, ill.,=,assi,gnor.,t o

Protectoseal .Company of America, LInc., Chlcago, Ill., a'corporation ofIllinois Applicationgleccmber 7, 1938,;SeraliNo.:2445376 4 Claims. (o1.2201-89) 'The invention relates to 'wash Ytanks or receptaclesyand moreparticularly it relates to :tanks or receptacles for inflammable orvolatile liquids in which articles may be dipped or submerged andthereby subjected tothe cleansing properties of the liquids.

This application is a 'continuation-,impart of my co-pending applicationSerial .No. 180;599,

filed December 18, 1937,7and issued under date of April 25, 1939, asPatent'-No;:2,155,i64 foriawash tank provided lwith a cover ,adapted to'prevent evaporation and laccidental ignitionzof the yccntents ofthe tankWhen `the coveris-closed.

`More particularly the invention consists inthe provision of novel meansfor supporting the cover in open position -tov permitaccessto thetankfor insertion and removal offiarticles 1 to vbe cleaned by immersionin thecontentsyof the tank, the

vopen Y position of the cover fbeingxsuch vthat Ait closes by gravity inthe absence Yof Athe support aiorded by such means.

The invention has amongits objects the provision of novel meansoperatively Vrelated to the tank and cover Wherebymovement of the coverto open positioncauses said means totake a position wherein the cover issupported Ithereby in open position, -said means-being yieldable topermit the cover to close byexertingvpressurre y,on the cover,-saidmeansbeingalso yieldable as axresult of ignition ofthe tank:contents-.to permit the cover to close by its own YWeight andtherebyimmediately terminate combustion inside of fthe tank.

A further object of the invention is tQ-provide a tank or receptacle ofthe :kind described having improved means automatically operabletoquickly stop combustion of the uid contentsof theztank in the event ofignition by accident'or'otherwise.

Another object ofthe invention is to provide a tank or Washing device ofthe-kind-described with a removable drainage basket for holding articleswhich are to be immersed inithe `volatile liquid and improved means rforSupporting said basket -above the liquid.

A-,still further object of the invention is thev'- Aproductionofxdevices ofthe kind 'describedfwhich are convenient, safe, durable andsatisfactory for use Wherever found applicable.

Many other objects and advantages of the coni struction herein shown anddescribed Will be obvious to those skilled in the art from thedisclosureherein given.

To this end, my inventionconsists in the novel construction,varrangement and combination .of

Y parts. herein showniandjdescribed:andfimore: particularly pointed' outinfthe claims.

In the drawing,` twherein like-reference .Bhara'cters indicate likerorcorresponding rparts:

Fig :i1 is an elevational and partial sectional viewfof, a tank -havinga hinged .coverfandfai-basket -embodyingfthe principles of theinvention, the

thetank taken I2 when open is slightlyiinclined to .the vertical andcorrespondingly projectsoverthe top of the tank.

V`The side and `bottom -walls .of..thebasket v.Il

vare provided Witha plurality of apertures .I4 to permit entrance ofthetank liquid in which the basket. issubmerged or.: partially submergedwhen resting on the-bottomof the tank. r'Ilhevbasket ll has a .pairrofoppositely `positionedbutside handles l5 shown-asrespectively.overlapping-V and -resting upon supportingand guide l.elements i6,

theelements being equallyspaced fromitheihi-nged connectionof the cover.l2 and suitablyiastened to theopposite-sideWalls 01"...the .-tankll)..-Apair of bars I,.positioned.insideof andiastenedfi the .basket il byWeldingcr any -.other.s,uitable means, Vprovides Aadditionalhandles ,bymeans of which .the basketmay be .conveniently liftedffrom thepositionshownfand beotherwise manipulated.

Apair ,of verticallyiextending b arsfl oppositely positioned in-.thetank.Iii `and preferablyequally spaced ,from thepsupportingelements I rhavek.their ends `fastened 'tothe tank by Welding or the like. ,The ,middleportions of the bars 1,8 ,project ,inwardly to v provide .additionalspacers -Vfor the basket Il, andthe endjportions of the balsiareinclined to,V provi-de` guides forthebasket .during its insertionandremoval fromithe tank Sl. The i describedarrangement ofthe supportingelements i6 and bars i8 enables'the' basket II to be easily inserted inand removed.'from thetan-k notwithstanding the open cover l2 projectsover 'the'top of the tank.

In practise, the tannin is,partiauynlleaiwiih volatile cleaning liquidsuch as naphtha or the like and the basket II, containing the article orarticles to be cleaned, is lowered to the bottom of the tank with thehandles I5 positioned intermediate the bars I6 and the supportingelements I8. Upon completion of the dipping or submerging of thearticles in the tank liquid, the basket is lifted and suspended in theupper end of the tank by engaging the handles I5 With the elements I6 topermit drainage of the basket and the articles contained therein throughthe apertures I4.

The tank fluid being volatile and exposed to accidental ignition whenthe cover I2 is open, means is provided whereby such ignition permitsthe cover to close by gravity and stop all combustion within the tank.An assembly of operatively related elements carried by the cover I2 andgenerally designated by the numeral is provided to support the cover inopen position in contact with a stop member 2| said open position of thecover as above stated being such that it tends to close by gravity.

The cover I2 isrhingedly connected to the tank I9 by a pivot I9extending through cooperating hinge members 22 and 23 respectivelyfastened to the cover and to the tank. The cover supporting means 2l)kincludes a relatively thin elongated bar or support member 24 normallyadapted to Vhold the cover I2 in open position 'when the cover is inengagement with the member 2|. The member 24 `extends along the insideface of thecover I2 and between said face and a pair of guide members 25mounted on the cover. One

end of the member 24 projects inwardly and is 5- apertured to receive abolt 26 having an end curved to provide a hook or open eye 21. The otherend of the member 24 is turned laterally to form spaced apart folds orloops 28 and 29, as

shown, and with its extreme end portion slightly curved and engaging therim 3i) `of the tank I0 when the cover I2 is open. The cover supportingmeans 2l) also includes a stud 3| suitably mounted on one of the guidemembers 25 and extend-Y g ing through an aperture 32 provided in oneendv of a fusible link 33. The apertured end of the link 33 ismaintained on the stud 3l by a pin 34 and its other end is connectedwith the bolt 26 by inserting the hook 21 of the bolt through anaperture 35 provided by the link. The end of the member 24, providingthe loops 28 and 29, is normally held in adjustable bearing contact withthe rim 3l! of the tank I0 by means o-f a nut 36 threaded on the bolt 2Sto engage the inwardly projecting apertured end of the member' throughwhich the bolt extends the link 33 being tensioned by such contact. Thecurvature and relative inclination and positions of the loops 28 and 29are such that the member 24 maintains the cover I2 in the position shownand the member is thereby yieldable by sliding of the loop 29 over therim 30 or by bending of the loops 28 and 29 or by both to permit thecover to close by manual pressure thereon or by manipulation.

ofthe member itself. In thus closing the cover I 2, the extreme tankengaging end portion of the loop 29 rides over and disengages the rim 3Uand likewise in lifting the cover to open position, the loop sildablyengages the rim and is moved to the position shown wherein it adapts themember 24 to support the cover.

In case of the ignition of the liquid contents of the tank I0 or of thegases emanating therefrom when the cover I 2 is op'en, the heat ofcombusticn will quickly fuse the link 33 to a condition wherein it willyield by elongation under its tensile stress and permit the member 24 tomove longitudinally upwardly along the cover I2 to a position whereinthe loop 29 disengages or is slidable over the rim 30 of the tank I0 andpermits the cover to close by gravity and thereby stop combustion.

Thus, it will be seen that the invention provides improvements in washtanks of the kind described including means for supporting a basketwhile draining, and in improvements in devices for holding the tankcover in an open position wherein it tends to close by gravity, saiddevices permitting the cover to be manually opened and closed and beingalso automatically operable, to permit the cover to close by gravity asa result of the ignition of the iiuid contents of the tank.

Having thus described my invention, it is obvious that variousimmaterial modifications may be made in the same without departing fromthe spirit of my invention; hence, I do not wish to be understood aslimiting myself to the exact form, construction, arrangement andcombination of parts herein shown and described or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. The combination in a wash tank of the kind described having anopening and a cover adapted to be moved downwardly to close the openingand to be moved upwardly into an open position wherein it tends to closeby gravity, of a support member mounted on and automatically operable bymovement of the cover from closed to open position to engage the tankand maintain the cover against closure by gravity when in said openposition, said support member being yieldable to disengage the tank uponthe application of force tending to move the cover from open to closedposition, and an elongated fusible element operatively related to andsubjected to a tensile pull longitudinally by said operative relationadapted to maintain the support member against movement relative to thecover when in open position, said element being mounted on the innerside of the cover and when fused being adapted to yield by elongationand permit the support member to move relative to the cover and tothereby operatively disengage the tank and allow the cover to close bygravity.

2. The combination in a wash tank of the kind described having anopening and a hinged cover for said opening adapted to be swung fromclosed to open position and vice versa through an arc of less thanninety degrees, of a bar mounted on the cover, one end of said bar beingturned to provide a resilient lateral extension adapted to engage therim of the tank and support the cover upon its movement to openposition, said lateral extension being yieldable to disengage the tankupon the application cf force to the cover tending to swing it from opento closed position, and a fusible element operatively rclated to andnormally adapted to maintain the bar against longitudinal movementrelative to the cover, said element being mounted on the inner side ofthe cover and when fused being yieldable to permit longitudinal movementof the bar and thereby to allow the cover to close by gravity.

3. The combination in a wash tank of the kind described having anopening and a hinged cover for said opening adapted to be swung fromclosed to open position and vice versa through an arc of less thanninety degrees, of a bar mounted on the cover, one end of said bar beingarranged to provide a plurality of resilient sinuously arranged lateralextensions with the end extension adapted to engage the rim of the tankwhereby the bar provides a support for the cover upon its movement toopen position, said lateral extensions being yieldable to disengage thebar from the tank upon the application oi force to the cover tending toswing it from open to closed position, and a fusible element operativelyrelated to and normally adapted to maintain the bar against longitudinalmovement relative to the cover, said element being mounted on the coverand When fused being yieldable to permit longitudinal movement of thebar and thereby to allow the cover to close by gravity.

4. A Wash tank of the kind described having a hinged cover, a memberadapted to stop the cover at an open position wherein it will close bygravity, an elongated member extending along the cover, means connectingthe cover with and preventing longitudinal movement of the elongatedmember relative to the cover, said elongated member operatively engagingthe tank to normally hold the cover in said open position, saidelongated member being yieldable laterally to permit manual actuation ofthe cover from open to closed position and vice versa, said meansincluding an element positioned inside of the cover, said element beingfusible upon exposure to heat generated by initial combustion of thevolatile fluid contents of the tank, said element when fused releasingsaid elongated member to permit longitudinal movement thereof relativeto the cover and the cover thereby to be closed by gravity.

RUDOLPH J. ANSCHICKS.

